JP2007318232A - Ip phone system and ip phone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To connect an incoming call not to a mobile phone but to an IP phone when the incoming call arrives in the mobile phone under an environment wherein the possessor of the mobile phone can utilize its own IP phone. <P>SOLUTION: The IP phone 100 includes: the charger 30 of the mobile phone connected to a connection port 209; a mobile phone detection means 207 for detecting the mobile phone on the charger 30; a mobile phone number acquisition means 205 for acquiring the telephone number of the mobile phone; a transfer setting registration means 204 for registering transfer setting information, which is used to apply transfer setting of an incoming call arriving in the mobile phone to the IP phone, to a management server; a presence information setting means 207 for setting presence information; and a registration control means 208 for registering the transfer setting information and the presence information to the management server, and when the mobile phone is detected, the management server connects an incoming call arriving in the mobile phone from another IP phone connected to the IP phone system to the concerned IP phone 100. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an IP telephone system and an IP telephone that perform telephone communication using a data communication function in an Internet network. In particular, the present invention relates to an IP telephone user by linking a mobile phone held by an IP telephone user with the IP telephone. If the owner is in an environment where his / her IP phone can be used, the mobile phone number is registered in the management server via the IP phone, and if there is an incoming call to the mobile phone, the phone The present invention relates to an IP telephone system and an IP telephone set for incoming connection.

  In recent years, IP telephone services using an IP network have been provided. In the IP telephone system, the voice from the transmitting side is digitized, further converted into an IP packet, flows on the IP network, and reaches the destination (receiving side). The IP packet received at the call destination is restored to the original information, and thus a call can be made between the transmission side and the call destination. This IP telephone system is being widely used because it can reduce operation, maintenance, and management costs as compared with an existing telephone network.

  As such an IP telephone system, a VoIP (Voice over Internet Protocol) system is currently on the market. As a typical call control protocol of the VoIP system, there is a SIP (Session Initiation Protocol). The call control by the SIP server includes an outgoing control command called INVITE. The INVITE command is the first control message sent from the IP phone on the calling side to the destination. In this message, the destination address, caller address, communication capability information as well as the caller name and company name are called for each phone. Can be sent to the destination as supplementary information.

  In an IP network, it is necessary to uniquely recognize a partner by using an address assigned to a device such as an IP address. For this reason, a device called a gatekeeper or gateway is generally used. The gatekeeper or gateway manages a database in which a telephone number assigned to an IP telephone and an IP address are associated with each other, and by searching for a corresponding IP address according to the designation of the telephone number from the IP telephone, The IP address of the IP telephone can be specified.

  For example, in the IP telephone system disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2004-147101), the MAC address and the IP address are received from the IP telephone before the operation of the IP telephone is started, and are included in the network address. Disclosed is a gatekeeper device having telephone number numbering means for registering and managing a telephone number, an IP address and a MAC address in association with the telephone number, a telephone number set in advance based on the address and notifying the IP telephone ing. By using an apparatus as disclosed in Patent Document 1, a unique address such as a telephone number and setting information can be automatically set for each user terminal when the power is turned on.

  In the IP phone system as described above, when a specific IP phone receives an incoming call, check the connection media such as voice codec and packet length between the other party (caller) IP phone and the called IP phone. After that, the connection and call are started. This process is generally called a negotiation process. The negotiation process is performed using, for example, a VoIP (Voice over Internet Protocol) system that is currently commercially available.

  This SIP call control includes a call control command called an INVITE message. The INVITE message is the first control message sent to the destination from the IP phone on the calling side. In this message, the destination address, caller address, communication capability information including codec related to voice and video, etc. are called for each IP phone. This information is used as ancillary information, and the negotiation process is performed using this command.

  On the other hand, now that mobile phones have been widely used, mobile phones are often used in offices and homes in addition to IP phones. Increasingly, companies are providing mobile phones in addition to individual IP phones installed on staff's desks, allowing them to use mobile phones on business trips or on business trips.

  There is a difference between a call charge for a mobile phone and a data communication charge for an IP phone system, and a call using an IP phone requires less economic burden. When an IP phone and a mobile phone are used together as described above, and the owner of the mobile phone is in an environment where the user can use his / her IP phone, control is performed so that the incoming call is connected to the IP phone even if there is an incoming call If possible, communication costs can be reduced, which is preferable.

A technique for performing such control is disclosed, for example, in the following Patent Document 2 (Japanese Patent Laid-Open No. 2004-187284) as a call charge saving device and system. This call charge saving device is a device connected to a public line network or a public line network connected to the Internet,
By connecting a mobile phone to the interface, the phone number of the mobile phone is automatically registered in correspondence with the fixed phone number registered in the data file in the exchange or server. As a result, when the telephone number of the mobile phone is inputted from any telephone, the exchange or server directly receives the fixed telephone number of the corresponding (registered) fixed telephone without connecting to the mobile communication network. To control the connection. With such a system, a call to a mobile phone is directly received by a fixed phone, so that a call can be made at a low cost between fixed phones and a good call quality can be obtained.

  This call charge saving apparatus uses an RF-ID tag having a short-range wireless communication function as an interface for connecting a mobile phone, and the control means uses the interface 7 with the mobile phone to check whether the mobile phone is connected or not. -Detecting that the ID tag has reached the information readable range of the reader, and executing a computer program that writes the mobile phone number held by the mobile phone or the information read from the RF-ID tag, that is, the ID code, into the RAM After completion of the writing to the RAM 3, a computer program is automatically executed to connect to the exchange or server and transmit the mobile phone number written in the RAM 3 to the number data file in the exchange or server.

  With such a configuration, the mobile phone number and the fixed phone number are registered in the exchange or server in association with each other, and when the mobile phone is disconnected, the corresponding mobile phone number is automatically entered as number data. Since the exchange or server is requested to delete it from the file, incoming calls to the mobile phone can be connected to the fixed phone.

  In general, a method well known as the above incoming call control has a call forwarding control function. For example, the following Patent Document 3 (Japanese Patent Laid-Open No. 2005-18194) discloses a communication exchange system in which a presence status table is provided so that registration and setting of incoming calls such as telephone calls and e-mails can be performed. .

The communication exchange system disclosed in Patent Document 3 includes a user presence state table indicating a user's presence in an exchange, and stores a transfer destination table for each user in which a transfer destination is set according to the user's presence in a memory. . When an incoming call is received for a user, the exchange obtains the presence status of the user by referring to the user presence status table, and determines a transfer destination corresponding to the presence status by referring to the transfer destination table for each user. If the user's presence is changed, the user presence state table is rewritten, and the transfer destination can be changed without newly setting the transfer destination.
JP 2004-147101 A JP 2004-187284 A (FIG. 1, paragraphs [0012], [0012]) JP 2005-18194 A

  However, according to the system disclosed in Patent Document 2, there is a problem that it is necessary to provide a call charge saving device having an interface for connecting a mobile phone in the system, and a short-range wireless communication function as a connection interface. Therefore, there is a problem that the mobile phone and the call charge saving device need to have these functions and the cost increases.

  The inventor of the present application has conducted various studies to solve the above-described problems. As a result, when the mobile phone user is in an environment where his / her IP phone can be used, for example, at the desk where the IP phone is installed. When working, pay attention to the fact that mobile phones are often placed in a charger placed on the desk and charged, and the charger is connected to the USB port of the IP phone. And detecting that the mobile phone is set in the charger and registering the correspondence between the IP phone and the phone number of the mobile phone set in the charger connected to the IP phone in the server. The present invention has been completed by conceiving that the above problem can be solved if the incoming call to the corresponding IP telephone is received.

  That is, the present invention has an object to solve the above-mentioned problems, and the mobile phone possessed by the user of the IP telephone is linked with the IP telephone so that the owner of the mobile phone can use his / her IP telephone. Another object of the present invention is to provide an IP telephone system and an IP telephone that are connected to an IP telephone instead of a mobile telephone when an incoming call is received.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application is
A management server that has a plurality of IP telephones, a registration management memory that stores setting information including telephone numbers assigned to the IP telephones and various setting information of the IP telephones, and performs call connection control; IP phone system consisting of
The IP telephone includes a mobile phone charger connected to a connection port, mobile phone detection means for detecting that a mobile phone is set in the charger, and a mobile phone number for obtaining the mobile phone number. When the acquisition means and the mobile phone detection means detect the mobile phone set in the charger, the transfer setting information for transferring the incoming call to the mobile phone to the IP phone is registered in the management server. Transfer setting registration means, and registration control means for registering the transfer setting information in the management server,
The management server connects an incoming call from an IP telephone connected to the IP telephone system to the corresponding IP telephone when the mobile telephone is set in the charger with reference to the registration management memory. The invention according to claim 2 of the present application is characterized in that in the IP telephone system according to claim 1,
The management server connects an incoming call from an IP phone connected to the IP phone system to a mobile phone when the mobile phone is not set in the charger with reference to the registration management memory. It is characterized by doing.

The invention according to claim 3 of the present application is the IP telephone system according to claim 1,
The IP telephone further includes presence information setting for setting presence information indicating that the user is present in the IP telephone when the mobile phone detection means detects the mobile phone set in the charger. And the set presence information is registered in the management server by the registration control means.

The invention according to claim 4 of the present application is
An IP telephone having a registration management memory for storing setting information including a telephone number assigned to each IP telephone and various setting information of each IP telephone, and connected to a management server that performs call connection control.
The IP telephone includes a mobile phone charger connected to a connection port, mobile phone detection means for detecting that a mobile phone is set in the charger, and a mobile phone number for obtaining the mobile phone number. When the acquisition means and the mobile phone detection means detect the mobile phone set in the charger, the transfer setting information for setting the incoming call to the mobile phone to the IP phone is registered in the management server. It comprises transfer setting registration means and registration control means for registering the transfer setting information in the management server.

The invention according to claim 5 of the present application is the IP phone according to claim 4,
In the IP phone, when the mobile phone detection unit does not detect the mobile phone set in the charger, the transfer setting registration unit registers transfer setting information for turning off the transfer setting in the management server. To do.

The invention according to claim 6 of the present application is the IP phone according to claim 4,
The IP telephone further includes presence information setting for setting presence information indicating that the user is present in the IP telephone when the mobile phone detection means detects the mobile phone set in the charger. And the set presence information is registered in the management server by the registration control means.

  In the invention according to claim 1, the IP telephone includes a mobile phone charger connected to a connection port, mobile phone detection means for detecting that a mobile phone is set in the charger, and the mobile phone. When the mobile phone number acquisition means for acquiring the telephone number and the mobile phone detection means detect the mobile phone set in the charger, the incoming call to the mobile phone is set to be transferred to the IP phone in the management server. Transfer setting registration means for registering the transfer setting information and registration control means for registering the transfer setting information in the management server, the management server from the IP telephone connected to the IP telephone system to the mobile phone When the mobile phone is set in the charger with reference to the registration management memory, the incoming call is connected to the corresponding IP phone.

  According to such a configuration, when the user of the IP phone has a mobile phone and is in an environment where the IP phone can be used, that is, when the mobile phone is set in a charger connected to the IP phone. In this case, when an incoming call is received from a mobile phone, it is possible to connect to the IP phone instead of the mobile phone, thereby reducing the call charge.

  According to a second aspect of the present invention, in the IP telephone system according to the first aspect, the management server refers to the registration management memory for an incoming call from the IP telephone connected to the IP telephone system to the mobile phone. If the mobile phone is not set in the charger, the mobile phone is connected to the mobile phone, so if the user of the IP phone has a mobile phone and cannot use the IP phone, the mobile phone You will be able to connect to incoming calls.

  In the invention according to claim 3, the IP phone further includes presence information indicating that the user is present when the mobile phone detection means detects the mobile phone set in the charger. Presence information setting means for setting the IP telephone to the IP telephone, the set presence information is registered in the management server by the registration control means, and the IP telephone user is transferred to another IP telephone user by the IP telephone. You will be able to see that you are in an environment where you can use.

  In the inventions according to claims 4 to 6, it is possible to provide an IP telephone constituting the IP telephone system according to claims 1 to 3.

  Hereinafter, specific examples of the present invention will be described in detail with reference to examples and drawings. However, the embodiments shown below exemplify an IP telephone system for embodying the technical idea of the present invention, and are not intended to specify the present invention to this IP telephone system. The present invention is equally applicable to the IP telephone system of other embodiments included in the scope of claims.

  As shown in FIG. 1, an IP telephone system 10 using IP telephones 12 a to 12 d according to an embodiment of the present invention is connected to a LAN 11 that is a local area network and IP telephones 12 a to 12 d that are connected to the LAN 11. And a SIP server 14 that is a management server connected to the LAN 11. The GW 13 is connected to a public line telephone switching network (hereinafter referred to as PSTN) 15. The LAN 11 is connected to an external network 16 such as a VPN (Virtual Private Network) or the Internet.

  Each of the IP telephones 12a to 12d has a unique telephone number and an IP address, and stores the IP addresses of the GW 13 and the SIP server 14. The IP telephones 12a to 12d have a plurality of voice codecs, and can communicate with each other by using connection media such as a voice codec and a packet length that are common to the communication partner. The process of confirming a common connection medium and matching the communication environments of the originating IP telephone and the terminating IP telephone is the negotiation process described above.

  The GW 13 is for connection to a central office switch (not shown) of the PSTN 15, and has a call control function and a voice encoding function. When any of the IP telephones 12a to 12d and a fixed telephone station (not shown) connected to the PSTN 15 make a call, call control is performed via the SIP server 14, the GW 13, and the PSTN 15.

  The SIP server 14 performs number translation, which is a correspondence between a telephone number and an IP address, and when an incoming call is received, an IP telephone having a corresponding IP address is identified from the telephone number and an incoming call notification is made. When a call is made between any of the IP telephones 12a to 12d or when connected to an IP telephone connected to an external LAN or the like via the network 16, the GW 13 is not passed but only the SIP server 14 is passed. Call connected.

  In the present invention, it is assumed that users A to D of the IP telephones 12a to 12d have mobile phones 21a to 21d, respectively. When the users A to D leave their seats or go out, they carry their mobile phones 21a to 21d, and business communication from the mobile phones 21a to 21d. Is used. Normally, there is no linkage between the IP telephones 12a to 12d and the mobile phones 21a to 21d. Therefore, when a call is made from a IP phone connected to the LAN 11 of the IP phone system 10 to a user of a specific IP phone, the other party may not be present, and the other party has a call to the mobile phone possessed by the other party. There is often.

  For example, when calling the user D of the IP phone 12d from the IP phone 12a, the call may be made to the mobile phone 21d possessed by the user D. In this case, the charge becomes a call charge for the mobile phone. When the user D who has received the call is present at his / her seat, if the user D makes a call to the IP telephone 12d, the user D can make a call with the user D between the IP telephone 12a and the IP telephone 12d. It only takes a fee.

  Therefore, in the present invention, when the users of the IP telephones 12a to 12d are present in their seats, there are many cases where the mobile phones 21a to 21d possessed by the users are placed in a charger and are in a charged state. Focusing on the above, a mobile phone charger is connected to the USB ports of the IP telephones 12a to 12d so that the mobile phones 12a to 12d can detect that the mobile phone is placed in each charger.

  When it is detected by the charger connected to the IP telephones 12a to 12d that the mobile phones 21a to 21d are placed, presence information indicating that the user is present is set, together with the presence information. The correspondence between the IP addresses and telephone numbers of the IP telephones 12a to 12d and the telephone number of the mobile phone and the transfer setting information are sent to the SIP server 14, and the transfer setting is turned on. With this configuration, when there is an incoming call from the extension-connected IP telephones 12a to 12d to the mobile telephones 21a to 21d, the SIP server 14 transfers the incoming call to the registered IP telephones 12a to 12d. Will be able to.

  FIG. 2 is a block diagram showing the configuration of the IP telephones 12a to 12d. The IP telephone according to the present invention is indicated by reference numeral 100 in FIG. 2, and all of the IP telephones 12a to 12d in FIG. 1 have the configuration shown in FIG.

  In FIG. 2, the IP telephone 100 includes a LAN interface 110, a speaker 120, a microphone 130, a voice codec 140, a display unit 150, an input unit 160, and a CPU 201, a ROM 202, a RAM 203, and a USB port 209 that constitute a control unit 200. Has been. A charger 30 for charging the mobile phone is connected to the USB port 209.

  The ROM 202 stores a program for controlling the operation of each unit, and the CPU 201 detects a mobile phone set in the charger 30, acquires the mobile phone number, and charging. A process of registering transfer setting information for setting transfer of incoming calls to the mobile phone to the IP telephone, a process of setting presence information, a transfer setting information, A program for registering presence information in the SIP server 14 (management server) is stored. Therefore, as shown in FIG. 2, the CPU as the control means 201 has the functions of transfer setting registration means 204, mobile phone number acquisition means 205, presence information setting means 206, mobile phone detection means 207, and registration control means 208. is doing.

  The IP telephone 100 is connected to a network LAN via a LAN interface (LAN-I / F) 110. The LAN is an IP network to which a predetermined communication protocol, for example, a TCP / IP protocol is applied, and a management server such as the SIP server 14 (see FIG. 1) and the IP telephone 100 are connected to form an Internet telephone network. An audio signal in a call is output from the speaker 120 or input from the microphone 130. The audio codec 140 has a function of changing the received sound volume and the sensitivity of the microphone in addition to encoding and decoding audio, that is, converting audio from analog to digital.

  The state of the IP phone 100 and various display images are displayed on the display unit 150 configured by a display panel or the like. The input unit 160 includes buttons and keys 161, and is used for various settings of the IP telephone 100 and a telephone number input. The control means 200 is mainly composed of a CPU 201 such as a microprocessor, and the CPU 201 controls the operation of each part of the control means 200 and each part of the IP telephone 100 by a control program or application program stored in the ROM 202, RAM 203 or the like. The registration control unit 204 performs control to register various states of the IP telephone 100 in the SIP server 14.

  Normally, when the power of the IP telephone 100 is turned on, the ID number, telephone number, IP address, user ID, presence information such as presence, absence, etc. of the own IP telephone are registered in the SIP server 14. The SIP server 14 receives registration information from each IP telephone 100, stores it in the registration management memory, and controls incoming connection.

  When the mobile phone charger 30 is connected to the USB port 209 and the mobile phone is set in the charger 30, the mobile phone detection unit 207 detects the presence of the mobile phone via the USB port 209. Then, the mobile phone number acquisition unit 205 acquires the mobile phone number of the mobile phone set in the charger 30. As a method for obtaining the mobile phone number, a USB terminal is provided in each of the USB port 208 and the mobile phone separately from the charging terminal, and the mobile phone number is obtained from the USB terminal, or the mobile phone transmits For example, a method of receiving a location registration signal and acquiring a mobile phone number included in the location registration signal can be used.

  When a mobile phone is detected and the mobile phone number is acquired, presence information setting means 206 sets presence information indicating that the user of IP phone 100 is present in the IP phone. Normally, presence information is recorded in a presence setting unit (sez shown in the figure) provided in the RAM 203, and a user inputs various presence states such as being present, during a meeting, out of office, and during a meal from the input unit 160. To set.

  In the present invention, the presence information setting means 206 sets the mobile phone in the charger 30 with information indicating the presence status of “present” or “going out or leaving” stored in the presence setting unit provided in the RAM 203. If the mobile phone is not set in the charger 30, the switch is made to “go out or leave”. Then, the registration control means transmits the presence information recorded in the presence setting unit of the RAM 203 to the SIP server 14 for registration.

  Then, the transfer setting registration unit 204 registers the information in which the ID or telephone number of the IP phone 100 is associated with the telephone number of the mobile phone and the transfer setting information for turning on or off the transfer setting in the RAM 203 as in the presence information. . When the mobile phone is set in the charger 30, that is, when the mobile phone detection means 207 detects the mobile phone, the transfer setting is “ON”, and when the mobile phone cannot be detected, the transfer setting is “ Off. This transfer setting information is sent to the SIP server 14 by the registration control means 208 and registered in the management memory.

  Accordingly, the registration setting information transmitted to the SIP server 14 is presence information and transfer setting information. The presence information includes information indicating the presence status of “present” or “out or away” and the IP telephone 100. Information associated with the ID or telephone number of the mobile phone and the telephone number of the mobile phone, transfer setting information for registering the transfer setting on, and the like. When the SIP server 14 receives the presence information and transfer setting information from the registration control unit 208 of the IP telephone, the SIP server 14 registers (sets) the transfer setting information and presence information as setting information of the IP telephone in a registration management memory (not shown).

  FIG. 3 is a diagram showing a configuration of a registration management memory (not shown) provided in the SIP server 14 serving as a management server. Settings of the IP telephones 12a to 12d connected to the LAN 11 are stored in the registration management memory. Information is registered and used for connection control. As shown in this figure, the registration management memory stores, for each IP phone ID of each of the IP phones 12a to 12d, the IP address of the IP phone, the phone number, the user ID, and the mobile phone acquired from the mobile phone set in the charger 30. Number, transfer setting (on or off), presence information indicating presence or absence is stored.

  When the mobile phone 12a is set in the charger 30 as shown in the IP phone 12a, the mobile phone number obtained from the mobile phone 21a is recorded, the transfer setting is set to the on state, and the presence is set to “present”. Information indicating “seat” is set.

  When the transfer setting registration is performed in the SIP server 14, the mobile phones 21a to 21a set in the chargers 30 connected to the IP phones 12a to 12d from the IP phones 12a to 12d connected to the extension (see FIG. 1). When a call is made to 21d (see FIG. 1), the SIP server 14 can transfer the incoming call to the registered IP telephones 12a to 12d.

  FIG. 4 is a schematic diagram showing an incoming call transfer procedure when the mobile phone is set in the charger 30 of the IP phone as described above. When the mobile phone 21a is set in the charger 30 connected to the IP phone 12a, the IP phone 12a detects the mobile phone 21a and acquires its phone number (arrow a in the figure). The IP telephone 12a sends the telephone number, transfer setting information, and presence information of the mobile phone 21a to the SIP server 14 for registration (arrow b in the figure). If there is a call from the other IP telephone 12d connected to the extension to the mobile phone 21a (arrow c in the figure), the SIP server 14 refers to the transfer setting registered in the registration management memory and transfers the incoming call to the IP telephone 12a. (Arrow d in the figure).

  On the other hand, when the mobile phone is disconnected from the charger 30, the mobile phone detection unit 208 detects this, and the transfer setting registration unit 204 sets transfer setting information for turning off the transfer setting in the RAM 203, and the presence information setting unit 206. Sets presence information in the RAM 203. The registration control unit 208 sends the transfer setting information and presence information to the SIP server 14, and the SIP server 14 changes the transfer setting registered in the registration management memory to off. In this state, when there is a call transmission from the IP telephones 12a to 12d (see FIG. 1) connected to the extension to the mobile phone, the forwarding setting is turned off in the SIP server 14 and the forwarding setting is canceled. Connect to the mobile phone with the incoming phone number without transferring the incoming call.

  FIG. 5 is a schematic diagram showing a connection procedure when the mobile phone is disconnected from the charger 30 of the IP phone as described above and the user is carrying the phone outside. When the mobile phone 21a is disconnected from the charger 30 connected to the IP phone 12a (arrow a in the figure), the IP phone 12a cannot detect the mobile phone 21a, and transfer setting information and presence for turning off transfer settings. The information is sent to the SIP server 14 to cancel the transfer setting (arrow b in the figure). In this state, if there is a call from the other IP telephone 12d connected to the extension to the mobile phone 21a (arrow c in the figure), the SIP server 14 has the transfer setting registered in the registration management memory off. An incoming call connection is made to the mobile phone 21a via the mobile phone network (public line network: PSTN 15 (see FIG. 1)) (arrow d in the figure).

  In the above embodiments, the IP telephones 12a to 12d may be hard phones designed as IP telephones, and are so-called soft phones that operate as IP telephones by application software installed in a computer device such as a personal computer. It may be.

  As described above, according to the IP telephone system and the IP telephone according to the present invention, when the user of the IP telephone possesses a mobile phone and is in an environment where the IP telephone can be used, that is, in the IP telephone. When a mobile phone is set in the connected charger, when an incoming call is made to the mobile phone, it is possible to make an incoming connection to the IP phone instead of the mobile phone.

1 is a system configuration diagram showing a configuration of an IP telephone system according to an embodiment of the present invention. It is a block diagram which shows the structure of the IP telephone concerning the Example of this invention. It is a figure which shows the data structure of the registration management memory provided in the management server. It is a schematic diagram which shows the incoming call transfer procedure when a mobile telephone is set to the charger of an IP telephone. It is a schematic diagram which shows the incoming call connection procedure in case a mobile telephone is removed from the charger of an IP telephone and the user is carrying.

Explanation of symbols

100 ... IP telephone 110 ... LAN interface 120 ... speaker 130 ... microphone 140 ... voice codec 150 ... display unit 160 ... input unit 200 ... ..Control means 201 ... CPU
202 ... ROM
203 ... RAM
204 ··· Transfer setting registration means 205 ··· Mobile phone number acquisition means 206 ··· Presence information setting means 207 ··· Cell phone detection means 208 ··· Registration control means 209 ··· USB port 30 ... Charger

Claims (6)

A management server that has a plurality of IP telephones, a registration management memory that stores setting information including telephone numbers assigned to the IP telephones and various setting information of the IP telephones, and performs call connection control; IP phone system consisting of
The IP telephone includes a mobile phone charger connected to a connection port, mobile phone detection means for detecting that a mobile phone is set in the charger, and a mobile phone number for obtaining the mobile phone number. Transfer for registering transfer setting information for transferring an incoming call to the mobile phone to the management server in the management server when the acquisition means and the mobile phone detection means detect the mobile phone set in the charger Setting registration means, and registration control means for registering the transfer setting information in the management server,
The management server connects an incoming call from an IP telephone connected to the IP telephone system to the corresponding IP telephone when the mobile telephone is set in the charger with reference to the registration management memory. An IP telephone system characterized by:   The management server connects an incoming call from an IP phone connected to the IP phone system to a mobile phone when the mobile phone is not set in the charger with reference to the registration management memory. The IP telephone system according to claim 1, wherein:   The IP telephone further includes presence information setting for setting presence information indicating that the user is present in the IP telephone when the mobile phone detection means detects the mobile phone set in the charger. And the set presence information is registered in the management server by the registration control means. An IP telephone having a registration management memory for storing setting information including a telephone number assigned to each IP telephone and various setting information of each IP telephone, and connected to a management server that performs call connection control.
The IP telephone includes a mobile phone charger connected to a connection port, mobile phone detection means for detecting that a mobile phone is set in the charger, and a mobile phone number for obtaining the mobile phone number. When the acquisition means and the mobile phone detection means detect the mobile phone set in the charger, the transfer setting information for transferring the incoming call to the mobile phone to the IP phone is registered in the management server. An IP telephone comprising: transfer setting registration means; and registration control means for registering the transfer setting information in the management server.   In the IP phone, when the mobile phone detection unit does not detect the mobile phone set in the charger, the transfer setting registration unit registers transfer setting information for turning off the transfer setting in the management server. The IP telephone set according to claim 4. The IP telephone further includes presence information setting for setting presence information indicating that the user is present in the IP telephone when the mobile phone detection means detects the mobile phone set in the charger. And the set presence information is registered in the management server by the registration control means.

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